private static void FindNavigationProperties(this ODataModelBuilder builder, StructuralTypeConfiguration configuration,
IList <Tuple <StructuralTypeConfiguration, IList <MemberInfo>, NavigationPropertyConfiguration> > navs,
Stack <MemberInfo> path, HashSet <Type> typesAlreadyProcessed)
{
Contract.Assert(builder != null);
Contract.Assert(configuration != null);
Contract.Assert(navs != null);
Contract.Assert(path != null);
foreach (var property in configuration.Properties)
{
path.Push(property.PropertyInfo);
NavigationPropertyConfiguration nav = property as NavigationPropertyConfiguration;
ComplexPropertyConfiguration complex = property as ComplexPropertyConfiguration;
CollectionPropertyConfiguration collection = property as CollectionPropertyConfiguration;
if (nav != null)
{
// how about the containment?
IList <MemberInfo> bindingPath = path.Reverse().ToList();
navs.Add(
new Tuple <StructuralTypeConfiguration, IList <MemberInfo>, NavigationPropertyConfiguration>(configuration,
bindingPath, nav));
}
else if (complex != null && !typesAlreadyProcessed.Contains(complex.RelatedClrType))
{
StructuralTypeConfiguration complexType = builder.GetTypeConfigurationOrNull(complex.RelatedClrType) as StructuralTypeConfiguration;
// Prevent infinite recursion on self-referential complex types.
typesAlreadyProcessed.Add(complex.RelatedClrType);
builder.FindAllNavigationPropertiesRecursive(complexType, navs, path, typesAlreadyProcessed);
typesAlreadyProcessed.Remove(complex.RelatedClrType);
}
else if (collection != null && !typesAlreadyProcessed.Contains(collection.ElementType))
{
IEdmTypeConfiguration edmType = builder.GetTypeConfigurationOrNull(collection.ElementType);
if (edmType != null && edmType.Kind == EdmTypeKind.Complex)
{
StructuralTypeConfiguration complexType = (StructuralTypeConfiguration)edmType;
// Prevent infinite recursion on self-referential complex types.
typesAlreadyProcessed.Add(collection.ElementType);
builder.FindAllNavigationPropertiesRecursive(complexType, navs, path, typesAlreadyProcessed);
typesAlreadyProcessed.Remove(collection.ElementType);
}
}
path.Pop();
}
}
public static void FindAllNavigationProperties(this ODataModelBuilder builder,
StructuralTypeConfiguration configuration,
IList <Tuple <StructuralTypeConfiguration, IList <MemberInfo>, NavigationPropertyConfiguration> > navigations,
Stack <MemberInfo> path)
{
builder.FindAllNavigationPropertiesRecursive(configuration, navigations, path, new HashSet <Type>());
}